We've been successful (at least with PVPowered inverters) in having the AC/DC disconnects in the inverter recognized as the required lockable disc in some jurisdictions. The PVPowered on, off, AC, DC switch is lockable......... Just keep it close to the utility meter.
________________________________ From: Rebecca Lundberg <rebecca.lundb...@powerfullygreen.com> To: re-wrenches@lists.re-wrenches.org Sent: Mon, January 11, 2010 3:54:52 PM Subject: Re: [RE-wrenches] DC disconnects In response to this: "Luckily the latest inverters from most manufacturers take care of this need with their included/integrated but seperated fused DC disconnects....." I actually wish the integrated disconnects for the new inverters were an option when purchasing, i.e. when I order the inverter it comes with it automatically, and is therefore reflected in the price. Where I live the AHJ and utlities are requiring the handled-lockable-'regular' AC and DC disconnects regardless of whether or not there is a UL-listed integrated disconnect with the inverter. Alas, for me it is redundancy and extra cost for materials and electrical work either way. I can either have the electrician wire it up and pay their cost, or I can leave the integrated inverter out (when it is listed as optional in the installation manual) but now I have a non-returnable part sitting around, which is wasteful too. Alas, the best solution is more solar so everyone becomes more familiar with it! Keep Shining! Rebecca Lundberg Powerfully Green, Minnesota
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